in src/visual.ts [151:161]
public static getColumnFormattingCallback(data: LineDotChartViewModel) {
return (index: number, dataType: valueType): string | number => {
if (dataType.dateTime) {
return data.dateColumnFormatter.format(new Date(index));
}
else if (dataType.text) {
return data.dateValues[index].label;
}
return data.dateColumnFormatter.format(index);
};
}